A. Lange & Söhne · Zeitwerk

Strap for Zeitwerk Honeygold Lumen

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter42 mm
Reference142.055
FamilyZeitwerk
MovementA. Lange & Söhne caliber L043.9 Small Seconds, Jumping Hours, Jumping Minutes | Constant Force Mechanism
CaseHoney Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Zeitwerk 142.055

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Zeitwerk 142.055, seen from the bench

The Zeitwerk was introduced by A. Lange & Söhne in 2009 as the brand's first mechanical watch with a digital time display. It is equipped with the in-house caliber L043.9 with a constant-force mechanism, jumping hours and minutes, and small seconds. The lugs measure 20mm in width.

Frequently asked questions

What is the lug width of the A. Lange & Söhne Zeitwerk 142.055?

The Zeitwerk 142.055 is equipped with a lug width of exactly 20 millimetres. This measurement is critical for compatibility with any aftermarket strap: any strap mounted on your timepiece must feature a 20mm width to ensure precise attachment without play at the lug attachments.

Which strap do you recommend for the Zeitwerk 142.055 in Honey Gold?

For a timepiece of this calibre, we recommend a natural alligator in cognac tone that amplifies the warm hue of the Honey Gold case, or a vegetable-tanned calf leather in deep burgundy for sophisticated contrast. Shell cordovan represents an excellent alternative for those desiring a patina that evolves over time. Your choice depends on personal style and intended context of use.

How do you change the strap on the Zeitwerk 142.055?

Strap replacement involves removing the spring bars that connect the lugs to the case. A specialised tool (spring bar tool) is required to push inward the small retaining pin of the spring bar: in this manner, the bar slides out from the lug. The process demands delicacy to avoid scratching the case. If you lack experience, we recommend entrusting the operation to a professional atelier.

Is an aftermarket 20mm strap compatible with the Zeitwerk 142.055?

Yes, any strap constructed to a 20-millimetre lug width specification is compatible with your Zeitwerk. However, we recommend artisanal straps crafted according to precise construction standards: the Zeitwerk deserves superior quality in terms of leather, finishing, and durability. Avoid generic low-grade straps that could diminish the watch's perceived value.

What is the typical lifespan of a leather strap for the Zeitwerk?

An artisanal leather strap has a lifespan of 3–5 years with moderate use (4–5 days weekly). Longevity depends on the tanning method employed: shell cordovan lasts considerably longer, whilst vegetable-tanned calf requires replacement more frequently. Regular care and rotation among multiple straps significantly extends the useful life of the leather.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only